Hirth, Friedrich.
Über den Seeverkehr Chinas im Altertum nach chinesischen Quellen. In : Geographische Zeitschrift ; Bd. 2 (1896).
https://www.jstor.org/stable/27803056?seq=1#metadata_info_tab_contents.
(HF13)
Economics and Trade
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Geography and Geology
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Sinology and Asian Studies : Europe : Germany
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Sinology and Asian Studies : United States of America